Although photovoltaic power stations possesses service life of over 25 years, their actual life span will be affected by the reliability of modules and other electrical equipment, and the conditions of the environment. To ensure high generating capacity, reliable and safe operation of a PV power station, its proper repairs and maintenance plays a very vital part.

Operation & maintenance of photovoltaic power station:

·         Preventative maintenance

·         Corrective and reactive maintenance

·         Monitoring maintenance

Preventative maintenance:

Sinotech Power Group Holding Ltd. has very rich experience and has set up a full set of procedures for preventative maintenance Through proper personnel training, well established procedures and maintenance manual, the use of special tools and methods, malfunction of PV power stations could be effectively prevented. Measures such as modules surface rinsing, periodic detective testing, routine maintenance and physical safeguarding will help improve the reliability and generating capacity of the power stations.

Corrective and reactive maintenance:

It will be carried out by professional technicians. Whenever a malfunction pops up, the servicemen will diagnose and fix the faults immediately. Their emergency measures and back up plans will reduce the loss caused by failures of the power station.

Monitoring maintenance:

Real-time monitoring of the power station and continuous analysis of all the information collected will help prevent problems before they happen. Such monitoring maintenance is also effective in finding out the factors attributing to degrading generating capacity.

Operation & maintenance includes:

Module surface rinsing, hot spot examination and testing, performance tracking

·         Function test and security examination and testing on electrical equipments

·         Regular examination and testing on lightning protection

·         Stability check on base structure

·         Control of vegetation

·         Personnel training and management

·         Security

·         Maintenance of monitoring system

·         Data recording and analysis

·         Spare parts replenishment and management

·         Quarterly and annual inspection report